Providers should pick what days and times they are willing to work during the week and auction off those appointment times. This would have the potential to significantly drive up appointment fees.
People want what they can’t have. It’s basic human nature. Once an auction ended for an appointment time, this slot would cease to be attainable.
Also, competitively bidding on pussy would be a lot of fun for hobbyists. It would be a win-win. Provider would make more money and hobbyists would have more fun.